Choo Choo Engineers!
I've built a new camera system for Choo Choo Survivor 2, that makes use of three cameras, and you should now find the graphics to move really smoothly as you drive, and the monsters and background should move smoothly as you chug along at max speed! Hopefully the lines in the mines textures have been eliminated.
Every good thing though does come at a cost and here the cost is that the train is now permanently above the zombies so you will always be able to see your locomotive, but enemies can now appear underneath (such as the jumpers). Also your projectiles and wrecking ball can also obscure the console UI at the bottom of the screen.
Best wishes,
GTGD