Definitely a unique game amongst the jam games, and a quite difficult one once you got into it. There's definitely some interesting mechanics throughout and some cool level layouts.
The main complaint I'd say is obviously the main one everyone says, the fact it's hard to tell the difference between left and right. Another comment I'd make though, however weird it may be, is the fact that A and D are set directions actually sort of tripped me up a few times. Though that may just be me, it sorta feels like it'd flip with the character.