Here's why:
* Tyrogue evolves based on its stats: In the original Red Rescue Team, Tyrogue evolves into Hitmonlee if its Attack stat is higher than its Defense stat, Hitmonchan if its Defense stat is higher than its Attack stat, and Hitmontop if its Attack and Defense stats are equal.
* Stats are fixed in Red Rescue Team: In Red Rescue Team, Pokémon stats are fixed and don't change with training. This means Tyrogue's Attack and Defense stats will always remain the same.
Therefore, it's impossible to evolve Tyrogue into Hitmontop in Pokémon Mystery Dungeon Red Rescue Team.
To get Hitmontop in this game, you'll need to find one in the wild. You can also find Hitmonlee and Hitmonchan in the wild.