The L.O.G.'s Lost Challenges Add-on for Banjo-Kazooie: Nuts & Bolts has 10 achievements worth 250 gamerscore.
Win all of the new DLC multiplayer games
Knock down all of the supporting cast in Ben Hurdle
Burn an opponent's vehicle until it falls apart at the seams
Complete all of L.O.G.'s Lost Challenges once
Show Sssuper Klungo the real meaning of sssuper
Complete all of L.O.G.'s lost challenges to TT standard
Complete all Lost Challenges in L.O.G.'s Choice and Player's Choice vehicles
Find the door to L.O.G.'s Lost Challenges
Klungo not ssstupid, ussse old fake wall trick to hide Klungo goodnesss
Win one of the new DLC multiplayer games in a ranked match