Nice idea, and great graphics ! Although I think the game has a lot of great idea but they are not interacting well between each other, like when you climb walls you can't kill enemies because they are all in the ground, and I love the variety of terrain (are they randomly generated ?) but as it's too difficult to get on them we can't appreciate them (jump is too low and climbing too long). We also fill a little vulnerable from the projectiles, maybe just ennemies that run on you and kill you on contact should be great
But overall nice entry, you could be proud of what you've done !