I didn't even know that MiSTer FPGA had a Jaguar core, try to contact the core developper.
The Jaguar Core can be found here https://github.com/ElectronAsh/Jaguar_MiSTer_new but only runs a few Roms but there must be a earlier Version of Alice Moms Rescue which did work as shown on youtube. Contact the Devs will be most likely useless. Last Activity on Git for this Core was nearly 2 Years ago