For instance, in Asimo3089's Coastline highway, when you collect all badges you get an in game ro-tercycle, how would i do that to my game, a reward for badges?
BadgeService has a method that lets you check if a player has a badge.
local player = -- player we're checking local badgeId = 3249234234 -- ID of the badge if game:GetService("BadgeService"):UserHasBadge(player.userId, badgeId) then --do stuff end
So you'll have to create a script that checks every time a player spawns to see if they have all the badges. If they do, then you can act on that information.