Not bad, the game is really simple, took a few minutes before you really get a grasp of it though. Actually really similar to my game but really different in the same time.
Anyway, let's talk about the gameplay. if i had to describe it, i think i would say it's a platformer game with a changing size block and disappearing obstacle. it's not really sound interesting, but i think you really done it's right here. but i still think it's too simple and need more thing to spice it up.
the visual is really simple, it's not "good" though, just rather mediocre, almost decent
there's only sfx for the audio, not bad. my game doesn't even has sound lol
am i enjoying it ? um well... it's not bad but not great ether, just decent but it's fit the theme really well.
good luck on your next projects.