This first one looks like a reference to the original Metal Gear Solid 3, which featured a monkey minigame in which Snake would attempt to neutralize the animals with stun grenade ...

You first only have a single difficulty mode in High tech Coloseum and there are two more to unlock. Each one have a new final boss (the last one have 3 special boss).

Snake Eater trailer has accidentally confirmed it's launching this summer, alongside a surprising Ape Escape crossover mode ...