Update: It looks like Scratch 3 broke this generator. I fixed it myself, but see also https://scratch.mit.edu/projects/579814950/ for a fixed version by Fogger123, who was the first to discover the issue. Press space to make a monster and q to clear your list. Feel free to post anything cool that you make in the comments!
Inspired by forgotten beasts from the game Dwarf Fortress. Example description from the original game: Ica Oilypride the Assault of Onslaught is a forgotten beast. A huge hairy slug. It has thin wings of stretched skin and it undulates rhythmically. Its pine green hair is unkempt. Beware its webs! Also, inspiration from @Nerfer007 and his similar project that's pretty cool: https://scratch.mit.edu/projects/37857432/