Robots Battle Mech Arena is a one-on-one mech fight where you chain combos, win the round, and spend the winnings on either more damage or more health.
The whole game runs on clicks or taps, so there is no control scheme to learn and it works the same on a phone as on a desktop. What you actually decide between rounds is the upgrade: damage ends fights faster, health lets you survive the ones you would otherwise lose. Picking one and committing to it works better than splitting the difference.
Worth knowing before you start: this is a heavy build, around 15 MB, and the loading bar moves slowly on a weak connection. Give it time rather than assuming it has frozen.
Runs in the browser with no download and no account.