The character's movement felt really all over the place and imprecise. The invincibility of the dash also didn't seem to be all too helpful in evading damage. The levels, while short, also don't feel like they were made for this game, as every pitfall was inescapable but didn't instantly kill the player, making me have to just sit there. Bosses 2 & 3 also felt really rough as the knockback I took either forced me to take damage or just wasn't enough for me to reach safety.
Honestly, the game feels like it just needs some fine tuning and more time. I can say with certainty though that the music was great and it kept me around.