dose anyone have a good sidescrolling controler?

ive been trying to make a side scrolling controller and cam. but im having some issues with the player going through meshes horazontaly but not verticly. pretty much when i jump on an object it works, and when i walk into a mesh with a collider or collition i go through anyone have anyideas why?

1.) A Mesh collider won't collide with another mesh collider unless it's specifically made to do so with Convex.

2.) Are they set to isTrigger?