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• Another item that can be found inside the capsules is the ray gun, which will upgrade Kissy's ray gun to a higher power level, allowing him to kill the enemies quicker. But when he is hit, his ray gun power level will decrease by one.

• The bonus game can be very tricky. If you save a Paccet on a regular floor, you will have any amount of Paccets from 1 to 8 (depending on how many you have saved) in the bonus game. This will increase your chances of getting an extra shield. If you have 8 Paccets, you'll definitely get an extra shield in the bonus game. Every time you get a Paccet in the bonus game, you'll get an extra shield but lose all your Paccets and you'll have to start saving them again.

• If you have Paccets on a boss floor, they will sacrifice themselves to help Kissy by throwing themselves at the boss for him. The boss will be stunned for a few seconds, which allows you to get in some free shots.

• On some floors, the ground and walls have invisible holes in them. These can help Kissy get away from the enemies. And if a projectile fired by an enemy hits a wall or the ground, it will dissipate.