At 1.1.5, enemy's Pokémon Roar works fine at Doubles, but if I use it, the game freezes. We both had entry hazards, specifically Stealth Rock. Here's an image:
-Tier: Random Doubles GS Cup (I think it's irrelevant this info, but I wrote it anyway).
-Emulator: Pizzaboy GBA.
-Bug: games freezes...