sorry you guys had a rough time with it, i'm working on some patches to fix the issues you guys were having! thanks for playing though, hope I can make a better impression in the future!
the game runs significantly better on windows, as that's my primary development platform. the mac version is still super buggy but I'm working on some fixes!
for now, the issues can be fixed by fullscreening the game, and turning your graphics settings down. if it doesn't, please PM me @senplusplus on twitter!