There are 23 achievements worth 1000 points

All is Forgiven (68 pts)
Complete Level 13

Bite me! (64 pts)
Complete Level 12

Clean Sweep (50 pts)
Complete a level without taking damage

Cowabunga Carl Getaway (32 pts)
Complete Level 4

Family Unit (15 pts)
Do a co-op move combination attack

Foot trail (48 pts)
Complete Level 8

Get your first coin (15 pts)
Get your first coin

Mystical Jungle (20 pts)
Complete Level 1

Ninja Tag Time (40 pts)
Complete Level 6

Ninjas in the crypt (72 pts)
Complete Level 14

O brother where art thou (60 pts)
Complete Level 11

Spirit of the Forest (36 pts)
Complete Level 5

Techno Ninjutsu (28 pts)
Complete Level 3

The Game is the Foot (44 pts)
Complete Level 7

The Mysterious Leader (76 pts)
Complete Level 15

Tower Power (52 pts)
Complete Level 9

Used Dons special move (30 pts)
Used Dons special move

Used Leos special move (30 pts)
Used Leos special move

Used Mikes special move (30 pts)
Used Mikes special move

Used Raphs special move (30 pts)
Used Raphs special move

Vigilantism (24 pts)
Complete Level 2

When the slime comes (56 pts)
Complete Level 10

Winter's Secret (80 pts)
Complete Level 16