Spawning Gachaballs is the most tedious thing in this game when trying to get a 100% completion.
This is a screenshot of Ape Escape 2 emulated in PCSX2, I had it downsampled from 1440p (2560x1440) to 1080p, with external shaders applied (FXAA, Bloom, Cellshading, etc).
I will upload my shader settings somewhere, eventually.
If you would like more screenshots, or the PCSX2 settings I used, check the compatibility post I made in the PCSX2 forum Forums.pcsx2.net