Main stage[edit]
Once Happy has dropped down to the ground from the top of the screen a Mewky from the three previous Mappy games will come walking towards him; once you have kicked him away, you shall come to a chest. Once you have kicked it, to open it, a rollerskate will emerge from it - and a grand piano and sparrow shall now come rolling and flying towards you. Once you have kicked both of them away, you shall have to jump onto the first level of a window and two platforms in turn, as you come to another chest; once you have kicked it to open it, a ring will emerge from it. You will then have to jump over to a third platform, to collect six more coins - and once you have landed, you will come to a third chest. Once you have kicked it to open it, another ring will emerge from it; you shall now have to jump over to a three-block platform, as you come to a crab who is walking back and forth (an ashy mining bee will also come flying towards you). Once you have kicked both of these away, you will come to two more chests - and once you have kicked both of them to open them two crystals will emerge from them. You'll now have to jump over to another three-block platform as you come to another crab who's walking back and forth; once you've kicked him away, you will have to jump over to a one-block platform, as another ashy mining bee comes flying towards you. Once you've kicked him away, you will have to jump over to a third three-block platform as you come to a third crab who is walking back and forth - and once you've kicked him away, you will have to jump over to another one-block platform as a third ashy mining bee comes flying towards you. Once you have kicked him away, you shall have to jump over to a fourth solid platform, a third one-block platform, and a fourth three-block platform in turn as you come to a fourth crab who is walking back and forth; once you have kicked him away, you will come to two more chests. Once you have kicked both of them to open them, two more rings will emerge from them - and a fourth ashy mining bee will then come flying towards you. Once you have kicked him away, you shall have to jump over to a fourth one-block platform and a fifth three-block one in turn, as you come to a fifth crab who is walking back and forth; once you have kicked him away, you will come to an eighth chest. Once you have kicked it to open it, a fifth ring will emerge from it - and you will then have to jump over to a fifth one-block platform, as you come to two more chests stacked on top of each other. Once you've jumped up and kicked both of them to open them a third crystal and a sixth ring will emerge from them; two more ashy mining bees shall then come flying towards you. Once you've kicked both of them away you'll have to jump over to a sixth one-block platform as you come to an eleventh chest - and once you've kicked it to open it a seventh ring will emerge from it. You shall then have to jump over to a fifth solid platform, a sixth three-block one and a sixth solid one in turn (in order to collect five more coins); once you've done so, you will have to jump over to the first level of another window to collect four more coins. You will then have to jump back to the left onto that sixth solid platform, up to the first step of a twenty-two-block one, and up to two more solid platforms in turn to collect three more coins - and once you've done so, you shall have to jump back to the left up to the twenty-two-block platform's second step to collect three more coins as you come to a sixth crab who is walking back and forth. Once you have kicked him away you will have to drop down to the left onto the platform's third step to collect a twenty-second coin; once you've landed you'll come to three more chests. Once you have kicked each of them to open them an eighth ring and two more crystals shall emerge from them - and you shall then have to retrace your steps back up to the eighth solid platform, jump onto the second window's second level, fall down onto a two-block platform, jump over to a dandelion seed that is moving up and down, and jump back to the left onto an eight-block platform as you come to two more chests. Once you've kicked both of them to open them, a ninth ring and a sixth crystal will emerge from them; you must now jump to the right while slowing the descent to land on a seventh three-block platform as you come to a seventh crab who's walking back and forth (a seventh ashy mining bee will also come flying towards you). Once you've kicked both of them away, you will have to jump over to an eighth three-block platform as you come to an eighth crab who is walking back and forth - and once you have kicked him away, you will have to jump up and kick all three blocks in a three-block stack to destroy them. You will then come to a seventeenth chest; once you've kicked it to open it, a tenth ring will emerge from it. You will then have to jump over to a seventh one-block platform, jump up, and kick all four blocks in a four-block stack to destroy them - and once you've done so, you will come to an eighteenth chest. Once you have kicked it to open it, a seventh crystal shall emerge from it - and you will now have to jump over to the left side of another two-block platform, kick its first block to destroy it, and drop down onto a ninth solid platform, to collect nine more coins. Once you've done so, you'll have to jump over to a ninth three-block platform, as you come to a ninth crab who's walking back and forth; once you've kicked him away, you shall have to jump over to a tenth three-block platform, as you come to a nineteenth chest. Once you kick it to open it, an eleventh ring will emerge from it - and you'll now have to jump over to an eleventh three-block platform and kick its third block to destroy it. Once you have landed on a third two-block platform, you shall come to a twentieth chest; once you've kicked it to open it, an eighth crystal shall emerge from it. You will then have to jump over to a twelfth three-block platform as you come to a tenth crab who's walking back and forth - and once you've kicked him away, you'll come to a twenty-first chest. Once you have kicked it to open it, a ninth crystal shall emerge from it; you'll now have to jump over to a fourth two-block platform as you come to a twenty-second chest. Once you've kicked this to open it a tenth crystal shall emerge from it - and you shall now have to jump over to the left side of a five-block platform, kick its fourth and fifth blocks to destroy them, fall down onto a thirteen-block platform, and jump up to collect three more coins. Once you've done so, you'll have to drop down onto a tenth solid platform, in order to collect eight last coins; you'll then have to jump back to the left over the mousehole as you come up to two last chests. Once you've kicked both of these to open them, two last rings shall emerge from them - and you shall then have to walk back to the right and enter that aforementioned mousehole in order to put an end to this stage (and proceed to the slot machine for the twelfth time).
Slot machine[edit]
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Mewta
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Mewchi
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Mew-mew
The slot machine is much the same as it was on the previous stages (including Nyamco's dialogue), but spinning a skull on it can still cost you a house part if you had won one in a question box, or had bought one or more from the shop (in addition to the initial penalty of losing 20000 Yen, which is also the penalty for losing a bonus game); once you spin an item that is not a skull in one-player mode (after the possibility of spinning one more than once, which if done enough times may end up losing you all the Yen you collected) and Nyamco has described it, he shall speak the following Hiragana text:
You may remember from the first stage that in Zynk Oxhyde's English translation, the above text is translated to "I think Mewta is good at flag game."; once you have pressed 
to continue, the images on the slot machine's reels will change to the three anthropomorphic Mewkies' heads as Nyamco starts telling you who your opponent is going to be (remember that Mewta is the "normal"-looking Mewky on a green background, while Mewchi is the sinister-looking one on a blue background, and Mew-mew the happy-looking one on a red background). Once you spin the head of a specific Mewky, Nyamco will finish telling you that this Mewky is going to be your opponent - and once you have pushed to continue, the game will proceed to the "Flags" bonus game for a fourth time (refer to its section on Stage 1's page for a description). Once you've beaten the Mewky whose head you'd spun twice, Nyamco will hail Happy as the winner, and give him the prize you had spun on the slot machine; once you press to continue, the game will proceed onward to the shop for the twelfth time (which shall also be the third occasion where the elephant does not ask Rappy if he will be shopping).
Shop[edit]
The shop is much the same as it was in the previous stages (including the elephant's dialogue); however, if you spun a skull on the slot machine in one-player mode earlier (and you did not win it back in a question box), the price for the part you lost shall have been returned to the wall, and if the part was either a flower, a swing part or a car part, the prices for the remaining ones will also have been raised back to the previous bonus value. Once you finish shopping, the screen will cut to the shot of the anthropomorphised Happy (looking at the picture of his partially-built house) - and once the game returns to the overworld map, you shall have to push down on the D-Pad to proceed to Stage 13, which is the fourth stage that is exclusive to one-player mode, as well as the earliest point at which Happy can finish building his house in that mode (but he can still lose parts by spinning skulls on the slot machine).