esolang where the only data type is a struct representing a Pokemon. complete with nature, EVs, IVs, moveset, etc.

there are no arithmetic operators. the only way to do math is by making Pokemon battle and then reading data from the struct afterwards

@kasdeya But if you spawn a missingno with just the right stats, you can overflow some buffer (per the language spec) and run a few dozen bytes arbitrary native code in the host ISA, but it has to be encoded as a series of recent moves and inventory items or something