I have created a mini version of Spidertron that has a sack on the back of its head to store the green acid that is spews at the player. The acid should melt/disintegrate the player, but not instantly (after a few hits). The Spidertron Mini has a full interior, for when it is cut up (so you can see the acid on the inside and the brain). Also the Spidertron Mini should move quickly.
Spidertron Mini.qbcl: http://www.filedropper.com/spidertronmini
