This app was mentioned in 4 comments, with an average of 1.50 upvotes
You are talking about games that came out in 2009 and 2010 and have long disappeared from the official store, though I see the Japanese RE4 is still there https://play.google.com/store/apps/details?id=jjp.co.capcom.android.googleplay.bio4
The only way to technically play it would be to use something like Moonlight to stream it wirelessly from an enabled PC.
Gamecube/PS2 emulation is impossible for the XD (extremely low FPS, GPU doesn't support the needed functions).
There's Japanese Android version on their store which could work but I couldn't tell you for sure: https://play.google.com/store/apps/details?id=jjp.co.capcom.android.googleplay.bio4&hl=en
Resident Evil 4 is available in Japanese Google Play last time I checked it https://play.google.com/store/apps/details?id=jjp.co.capcom.android.googleplay.bio4
There is already a RE4 game on playstore.
https://play.google.com/store/apps/details?id=jjp.co.capcom.android.googleplay.bio4&hl=en