My feedback after playing the version 1.0.1 :
I've played a lot of 3D fangames and this one is by far the best even if it's the demo. The game perfectly nailed the PS1 feeling and the original Crash's spirit. The level design, the graphics, the blue gem secret, everything concept speaking is well polished.
Gameplay speaking : great, the difficulty of the level is well balanced, the control is a perfect mix between the Crash 4's physics and the old games feeling. I really appreciate that you made the hob slide technique so much accessible because in the old games that was pretty hard to master. My only little issue is some enemies have weird hitbox. Especially the snake that I've been able to kill pretty far and sometimes not and I end up beeing killed by it.
Music and sound design : the music is purely Crash Bandicoot, especially the title screen one that made me feel playing a brand new official PS1 Crash game. Just too bad the bonus music isn't original but maybe it's a placeholder? Sound design is very good but I still miss the good old Crash's "woah"! :')
Bug reports : when I did the time trial, The first mask gave me the invicible ability so I was surprised that I just broke the crates instantly instead of bouncing. Another very frustrating bug is the crates not breaking when you jump on them, there must be a collision detection issue with Crash's feet. Another very funny one is when I jump on one fish, Crash died (because I jumped too high?) and never respawn! xD
Keep up the good work! I'm excited to see more!