How can i boot this "extreme hunting" via Flycast core Atomiswave?

++++++++++ (xtrmhunt.zip) (100M)+++++ Retroarch give me “no item” message when boot flycast core I already boot many other Atomiswave game .bin .lst without any problem ++++++++++ I put all the bio that need under “dc” retroarch system folder. The flycast won’t work with mameromset?! +++++++++++ My another question is I got Resident Evil Survivor 2 – Code: Veronica ++++++++ One with mame-romset and one with .bin .lst ++++++++ (gunsur2.zip) (175M) and (gunsur2.bin)(240M) ++++++++++ Mamerom seems can’t boot with flycast +++++++++ Flycast do load gunsur2.zip however after few seconds it just stop/crash. ++++++++ gunsur2.bin do boot with core But it get black screen forever. +++++++ Need help thanks.

++++++ Update I don’t think any of these shooting arcade game will work under Mame core at all.

Could you ++++++++++++++++++++stop++++++++++writing text like++++++this++++++it’s very hard+++++++++to read+++++++