So some enemies seem to die, before their health bar is completely depleted. Then I'm taken to the next level and immediately I get killed. I'm not a fan of the one-shot-kill system. Not to say that the game was hard to learn, but I would have preferred if the game showed me what the controls were instead of checking the description. Because most games that do this tend to frustrate the player, then when they check the description, or the "How to Play" menu, they find a key that they didn't know that could potentially save them.
Well done, for a first jam.