I don't think I've ever heard anyone else talk about Rocket Slime. I've never even played any mainline Dragon Quest game, and Rocket Slime is absolutely one of my favorite DS games of all time. I love everything about that game, from the team building to the way you steal items and enemies on the carts, to the hilarious slimes you gotta save. And boy, fighting other people in your tank was so much fun, although the cannon play was always kinda lackluster. Still, having an NPC man the cannons while you hop in your (incredibly overpowered) golem suit and walk over to the enemy tank, break in, destroy everything. Your NPC is wailing away on the cannons while you're distracting their gunmen, whittling away the tank's health, only for you to break into the heart and smash it to pieces.

I could go on, what a s(ub)lime game. Thanks for uncovering an old memory I had long forgotten, OP.