You can use the app to stream the game from your PC to your phone or tablet. ⚠️ A Note on Fan Projects
These updates were modders attempting to recreate the Castle Crashers experience using the OpenBOR (Beats of Rage) engine. OpenBOR runs on PSP, and several fan projects attempted a demake. The "upd" would be version 2.0 of that demake, adding the Industrial Castle or Ice Arena levels. castle crashers psp iso upd
The "UPD" tag in the filename isn't just for show. According to the forum legends, this version includes a functional Ad-Hoc Multiplayer You can use the app to stream the