No NDS? or is that a different game, cuz im looking for ds games to speedrun and this game is also for ds but then its called monster trucks DS but its i think the same game, only the cover is different, or should it fit into a series then?

The DS game is made by the same company and has the same cover art, but it's a completely different game. I wouldn't be against adding categories for the DS game onto this page but you'd have to talk to the mod about that. I would join the discord to discuss it further as people check that a lot more than this forum.