I just want to say a huge thank you to
@zaksabeast. With Citra Android port, I was able to play Pokemon Dream Radar using my phone's camera. Then, using zak's patch, I transferred the captured Pokemon to my Pokemon White 2 savefile which I opened with melonDS Android port in order to receive them. The goal of Dream Radar is to capture the 3 legendary "Forces of Nature" Tornadus, Thundurus and Landorus. After completing that task and transferring them to White 2 (along with many other pokemon), I used cheats from another of zak's posts, which trick Dream Radar into thinking a Gen 4 Pokemon game is inserted. This unlocks each Gen4's Legendary. Here's an album of my experience: