Forretress is a dual type bug/steel type pokemon.
It evolves from pineco at level 31. Catch pineco via headbutting a tree on route 9.
Foretress' inner body has 4 eyes and is red with a black stripe with eye sockets and also has 4 cone-like things on its side. ( I doubt what they are for, but they could be cannons or a mouthpiece ) It has an outer shell that closes so it can be unseen by intruders. Whoa. Not even a scyther can see its innards ( Ewwww )
Height and weight:
Its shell is usually closed, but opens when trying to catch prey. However, it does this so fast that nobody can see its innards.