You can try to concentrate on the intervals between the lower and higher note of the chord.

For example, for major chords.

Root position : you hear a fifth intervall

1st inversion : you hear a minor 6th

2nd inversion : you hear a major 6th

This will help you to better identify them

Thanks a lot!! I will try it!

First of all, the game should have had the rating "advanced"

1) So since this game is advanced I encourage you or I would recommend using a musical instrument or even an app on the phone like a virtual piano, don't fret and don't feel guilt about it, over time you will be able to drop this aid (promised)
2) use your instrument to detect the lowest note you hear (the bass)
3) observe the name of the given chord, play the chord for yourself if needed and observe its structure.
4) determine which degree of the chord does the bass represents
5) over time when it becomes easier to hear and separate the bass note, try to detect the next stage's bass by comparing it to the previous bass you heard, eventually that would enable you to forego the use of a musical instrument. But there's no rush.
6) this game requires you to sweat, decide on how much time you're willing to invest in it and then stick to the training religiously it doesn't matter if you finish a level or not but stick to the workout on a dedicated DAILY religious like routine
7) please report back on how do you do

Great advice!👌