Short but very good hack, pretty challenging but very fair.
I only encountered one small issue towards the end of "Dangerous Lines", where the vine didn't spawn from the block (a sprite limit issue?). After dying it worked again, so no big deal.
Another Short & Sweet Hack. Really enjoyed playing this one.
Each level has its own gimmick and they really make fantastic use of Vanilla Sprites to create some really fun obstacles for you to overcome.
Don't let the first level fool you as it gets harder pretty quickly.
Once again I really would recommend this to people.