Look up clipartof the tanks, like this https://www.the-blueprints.com/blueprints/trucks/ural/73207/view/ural_4320_bm-21_grad/

this is art

just unfinished

is this some kind of joke?

Needs some work.

The game doesn't start over when it's finished.

Not much of a game, but it's still a game.

It's extremely archaic and oldfashioned. Simplicity can be forgiven however if the graphics are nice to look at. If you took the source code from this game, and gave the tanks, helicoptors, powerups and background a nicer look, this game would instantly go from a 1.68 to at least 3.5.

However as it is it really doesn't look good, everything is way to big, which causes some confusion with the hit detection. The beginning text is alos badly translated.