@barbudreadmon For IKARUGA, indeed I took the DC iso and it runs well
I imagine there is no other way then.
Regarding Ibara, I have no clue then 
Emulators available in recalbox seems not liking him... FBNEO or MAME do not run it.
Maybe I'm totally wrong in my wya of trying then...
I've been through the links provided and I must admit being nowhere near understanding what is about LOL
Yeah, I know RTFM noob... ok ! But where is the manual that explains all that in human redeable language ? 
Anyway... if one is kind enough to explain he is welcomed, otherwise I will stick to what does launch "as is".
I gave a look to TAITO type X, and nothing clear came out... likely not working from my different reading (even if the posts where quite old in fact). Same story, if not specialist it is hard to understand some topics 