Looks good, the only qualm I have is the inconsistency between sprites and backgrounds that are real. Besides that it's good fun to toy with.
EDIT: Ok I played it and it's quite glitchy, also Sligs can't jump with the pants we know and love
And how come they cant die with being shot by their own guns? Oh yeh and also my shotgun only fires in one direction, backwards ;?
Verdict:
Story Line: 8/10
Gameplay: 5/10
Consistency: 6/10