Frostwraith
The Demon King
Except it's clear that Olimar is minuscule, considering the treasures in Pikmin games are everyday objects that are huge compared to Olimar.In the case of Olimar we don't have a reference point for him compared to another characters from SSB., but in SSB. we have Samus as a reference point for Ridley, which shows that he is too big compared to her, in that case we can't change the scale difference easily trust me it will feel wrong....
Suddenly, in Smash, we have him to be slightly shorter than normal sized human characters like Snake and Samus.
We have Samus as a reference point for Ridley. Sure, we do have a reference right here: