SteveAndZach has a nice Banjo & Kazooie video on his YouTube channel, with a weird mod for the game that makes it looks a bit like a RAREware version of Sonic Xtreme. I dont know from where this came from, but it’s fun:
Update: Horatio & Danny make us notice that this video is from a sonic fangame, named “Sonic Robo Blast 2”, with a Banjo WAD. Thanks for this info! Searching through google i have found an “official” website for the game, but it seems down at the moment..