S&Rush

This game exists because of one review:

You have seen it a hundred times: a crowd sprints at two gates, one says x2, the other says -1, and the ad cuts before you ever get to play. Here is the actual game.

Steer your crowd, pick the right gate, grow from one runner into hundreds, then throw all of them at the boss waiting at the finish.

100 levels, six level layouts and three worlds (ice, desert, city). Roughly an hour to clear.
Gates add, subtract, multiply and divide your crowd. Some rows slide sideways.
Hazards are not a tax, they are a reaction test: one hit costs you half your crowd, a second one ends the run.
Enemy crowds charge you and cannot be walked around.
A boss at the end of every level, with a health bar and a run-up you can read.

Every level was verified passable by a simulation, three ways: a perfect run, a sloppy one, and a run that eats a hazard. You will never be asked for 80 when only 43 are reachable.

Single player. A / D or move the mouse to steer.