Decent little beat 'em up, I absolutely adored this game when I was younger but I always got stuck toward the end and I never knew what to do. Now as an adult, I can see the issues much more clearly - enemy Pokemon deal way more damage than you do. The EX mode battle royales are extremely frustrating for this exact reason and the only way I've found that beats them consistently is to get a ton of Pokemon with the move Cross Chop and be very careful about when you use the attack. This means grinding out the cave level over and over with hopes of getting as many Machamp as possible and praying they have the attack, otherwise you'll be grinding the hell out of levels for money to try and roll the move (most likely unsuccessfully). Everything up to the EX ranks is pretty fun, if not incredibly simple, but the game completely halts being fun at the end.