So it's like PaRappa town but with siren head...? Sunny and PJ were captured, PaRappa, Katy and Lammy are were attacked. PaRappa's arm was broken, Katy's eye was hurt badly and Lammy's head was torn or something. Long horse appeared and healed lammy but went before healing the rest because it heard something. They ran to the barn and saw some map or something.

Oh and PaRappa had a shotgun