Nice game! It feels like a complete experience. The game takes its time to introduce its mechanics, your characters have animations, there's music and the sounds match great. 
The level design is clever and the use of the limitation is good as it is important for the gameplay. Just be careful with some of the hitboxes and make the mechanics more "stable". For example, when one character has to go over the other, the movement feel more limited and weird, so it was hard for me to get accustomed and took me some attempts. The last level was tooo hard, breaking for a moment the frustration line with that jump over lava.
All in all, this was a great entry, good job and keep creating and polishing games.

GOOD GAME! In level 6 there's a jump that seems impossible, but it is, that slowed me down so much. And the spike turtle hitboxes are funky. But still a pretty good game!