I give the author credit for using a custom Lisp interpreter for scripting (Abuse is not, as is mentioned in another review, fully written in Lisp; there's far more C code than Lisp code). The control scheme is novel.
It plays like a typical jump around and find the buttons platform shooter. Nothing new here.
The Bottom Line
If you've played any of the hundreds of platform games for the NES, SNES, or Genesis, you'll be unimpressed. If this is your first exposure to the genre, then you may enjoy it.