On default settings the enemies are pretty dosile and predictable, but the hardest setting can present a real challenge. Most of the mutants can be killed with one blow, but some take several shots.
Konbo/Combo - 350 points
Rounds: 6, 10, 12, 15, 16, 25, 26
Not a particularly dangerous enemy, it sits up on its tree throwing rocks down at you. If you don't have the Star power it may cause a few problems as you'll have to dodge the rocks. If you run under it, it will jump down and attack you.
Fōgeru/Vogel - 150 points
Rounds: 5, 7, 8, 9, 11, 15, 21, 22, 23, 24
An irritating enemy, they can leap over gaps and often kill you mid-jump. They mainly run at you and try to jump on you one at a time. If you attempt to jump over them, they will try to double back and kill you.
Cave Bat - 330 points
Rounds: 5, 9, 11, 23, 24.
These bats only ever appear on the vertical rounds and try to drop an object on you as you climb the rope. They don't pose any other real threat and are fairly easy to kill or avoid. The object they drop can be shot.
Cave Lizard - 100 points
Rounds: 5, 9, 11, 23, 24
A very passive enemy which only appears on vertical rounds and doesn't threaten you much. They lash out at you with their long tongues which can block your shots if you don't have the Crown. Just swing out and hit them with an over head shot to safely remove them.
Crab - 200 points
Rounds: 4, 5, 7, 11, 12, 14, 19, 21, 22, 26
These strange creatures are embedded in the ground on certain rounds. If you walk over them they will jump high into the air and scuttle about after they land. They can be killed instantly by jumping on them even if you don't have the Tiger power. Be aware that these crabs as they can walk over water and through rocks.
Death - Invulnerable
Rounds: Any
Death will appear on any round when you've run out of time. When your time is nearly up the music will change and the sky will darken. Death always appears from the left hand side of the screen and homes in on you. If he misses you he floats off the screen and reappears at the left again only this time much faster. He keeps on attacking, gaining more speed until he is impossible to avoid or you finish the round. It is not possible to kill him. If you're good enough you can time a jump right so you bounce off him but this does no damage.
The key to getting a hi-score lies with rank, but Death makes getting points after a time out very risky. It's difficult to judge whether or not you're meant to duck or jump after a while. But if you jump a split second after Death leaves the screen he will float back in from the left more in the middle of the screen. This can increase your chances of surviving as you know where he will reappear. This won't keep you alive on that round forever though because Death eventually gets too fast to avoid at all. Death is also the only enemy that isn't affected by the game difficulty settings and will increase in speed equally whether the game is on easy or hardest.
Dragon - 1250 points
Rounds: 1, 5, 10, 13, 14, 22, 26
Dragons are worth a lot of points and have no chance of really killing you on their own. Kill as many as possible as they're worth 1250 points each. Note that killing the Dragon while the rider is still on it counts as 1 kill when working out your rank.
Bōgu/Borg - 250 points
Rounds: 1, 5, 10, 13, 14, 22, 26
These enemies fly in on the dragons and drop down on you. Like a few other enemies they charge at you and can leap over pits and gaps. These guys ride the Rhino's on later rounds, but they never jump off and attack you. Instead, they will lob axes at you. You can bounce off the axe or shoot it. If you kill a Dragon Rider while he's still riding on a Dragon, he is worth no points.
Drone - 100 points
Rounds: 1, 2, 13
These headless enemies appear in the first two rounds and then only reappear on round 13. They're easy to deal with in the early rounds, but on round 13 they speed up dramatically. They rush in large groups, usually from both sides of the screen at once and attempt to kill you by sheer force of numbers. They make it hard to get the 1,000,000 point parchment and stars which are on the same round.
Flying Squirrel - 250 points
Rounds: 1, 4, 6, 8, 10, 12, 13, 15, 25, 26
Flying Squirrels wait to ambush you, usually close to the end of the round. When you get close to them they swoop down and then fly off the screen. Very rarely, they will wait until you've passed under them and then swoop to the right. These animals can't be killed with the Tiger power.
Sunaipā/Sniper - 2000 points
Stamina: 8 (4 with crown)
Rounds: 4, 8, 12, 16, 20, 24, 27
These giants called Sniper are waiting for you at the end of every 4th round and there's two guarding the final boss' chamber on round 27. They attack you by trying to stomp on you and can be deadly if covered by other enemies. You can pick up a special 50,000 point bonus if you kill them by jumping on them with the Tiger power. This is easy to do with a bit of practice.
Giant Flying Fish - 150 points
Rounds: 21, 22
These fish only appear in two late rounds and aren't difficult to deal with. They simply jump over the rafts every two seconds and the ripple in the water tells you when this is going to happen. On round 22 they can contribute to the difficulty with Dragon Riders dropping down and Blue Monkeys jumping onto the rafts.
Rorufa/Rolfer - 100 points
Rounds: 1, 2, 4, 9, 12, 19, 24, 26
These creatures wriggle out of the ground, curl up and then bounce across the screen and off the rocks. If left for a bit they tunnel their way back down under the ground and roll off the screen.
Debin to kāneru/Devin And the Kernel - 280 points
Rounds: 2, 3, 5, 7, 16, 20, 21, 23, 27
Another commonly found enemy. These can be tricky to get rid of, especially on round 20 where they swarm in large numbers. They swarm all over the skies and some will swoop down at you occasionally. Some of the Griffins will drop rocks down on you.
Dororon/Lava Man - 230 points
Rounds: 4, 5, 8, 9, 10, 11, 12, 16, 20
These foes emerge from the ground and shoot fireballs at you. They've only got one round of their own, round 8. Their tactic on round 8 is usually to come up on either side of you and try to shoot at you in a crossfire. You can bounce on the fireballs and also shoot them for 50 pts.
Zausā/Saucer - 200 points
Rounds: 6, 10, 15, 25
On the hardest difficulty settings these creatures are the most deadly foe in the entire game. They lurk on the outskirts of the screen and then they will suddenly leap across at you in the blink of an eye! They may even jump at you when they're off the screen. Stay on the ground while these are about. If you jump while they are lurking around they will leap across to try and kill you as you land. On default settings they are slow and easy to see coming, but beware of them on the harder settings.
Mutant Tribesman - 230 points
Rounds: 2, 7, 8, 11, 12, 14, 17, 18, 22, 24, 27
These mutants often form stacks which can be shot in one go for 10,000 bonus points. On some rounds they pretend to form a stack but then jump at you instead - learn which is which. On later rounds they also attack in groups in a long line formation from both sides of the screen.
Hobito-zoku/Hobbit Tribe - 200 points
Rounds: 6, 17, 18
These mutants live in the caves of the land. They jump out on you and charge in large groups, trying to kill you through sheer force of numbers. If you get caught under one of the cave entrances when they start spilling out, they can be difficult to cope with.
Mutant with Tentacles - 220 points
Rounds: 11, 16, 18
These are the least deadly of all the mutants, but they can often surprise you if you're not paying attention. They whip you with their long tentacles, but unless you're unlucky there's little chance of you getting hit by them. On the harder difficulty settings, their main tactic is to get close and force you to duck by lashing out at you. This prevents you from jumping away while the other mutants charge and try to kill you. These monsters are also harder to kill with the Tiger power than other enemies.
Rhino (small) - 150 points
Rounds: 1, 2, 6, 8, 10, 15, 16, 17, 18, 19, 25, 26, 27
These small rhinos appear in nearly all of the levels. They charge at you in groups and they can often run through your shots when there's large numbers of them. They gradually speed up as you progress further into the game.
Rhino (large) - 760 points (1000 points with a rider)
Stamina: 6 (2 with crown)
Rounds: 4, 13, 15, 19, 26, 27
Rhinos charge at you and will trample you to death if you not careful. On the later rounds they charge almost instantly. They take several hits to destroy and are very fast on the later rounds making it impractical to kill them without any power ups. Some of the Rhinos have riders that will throw an axe at you which can be difficult to avoid.
Snake - 500 points
Rounds: 12, 15, 16, 19
Snakes are very deadly. They dart out of small holes in the rocks and bite you. You can tell when they are about to strike as their red eyes glow in the hole just a split second before they attack. Beware when you kill one snake; another will sometimes immediately spring out of the same hole.