Movement does need some tweaking, i've had a severe case of brain fart when making it so you can just move every 0.01 seconds. I've also run into gem spawn problems, but I could always get them, so I didn't bother fixing that. I didn't want to make homing enemies to not be too hard, or a heart system to make the game go on too long, so the enemies are just 1 hit kill, which might be a bit punishing too. Thank you for playing an the criticisms!