As a beginner, I can see why this Trixie is considered the worst Mugen character of all time by most bronies who are into Mugen.
As for Pachirisu: She isn't ready yet as you can see she has a lot of coding fixes that needs to be fixed real badly. Such as Double Team not connecting to those who aren't small thin sprites unlike Pachirisu herself, Pichu, and any sprited Sonic characters out there. Trixie is by Weegeeisgoingtokillm Pachirisu is by me (Who is a buggy mess right now.)
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Pachirisu is an Electric-type Pokémon from the Pokémon series. It doesn't evolve from or into...