Some information is not in 3D Centipuss(not)’s manuel that is useful, such as:

 

Enemies:

 

Mr.cat, snowfeets (the cubes with 3d pentagons for textures on all sides), Fruitors (the balls with dirt textures), Master genaric (the beveled triangular prism as a texture on all sides of a cube), dodens (the same texture as Master generic, but a black triangular prism on all sides of a cube instead), Mrscat (the large asshole with with a 3d pentagon texture an all sides with a stupid hat)