Drop Four

Opening

Drop Four is Connect Four, presented cleanly and played straight: seven columns, six rows, four in a row wins. It's another entry in Frank Force's LittleJS Arcade collection, and it brings the same confident execution seen in the other titles from this set — a proper AI opponent rather than a placeholder, multiple modes, and controls that were tested and simply worked.

A real opponent, and options beyond it

"Player vs AI · Medium" isn't decoration — the AI genuinely blocks obvious threats and builds its own position rather than dropping pieces at random, giving it enough bite to be worth playing against more than once. Player vs Player offers local pass-and-play for two people sharing a screen, and an AI vs AI spectator mode lets you watch two computer opponents play each other, which is a nice touch for a small hobby project. Undo, restart, and pause are all supported and clearly labelled on screen.

Controls, tested rather than assumed

Tapping a column on a simulated phone dropped the current player's piece into the correct slot at the bottom of that column, and the turn indicator correctly switched to the other player immediately afterward — confirmed by screenshot comparison of the actual board state before and after the tap, not by assumption. Desktop mouse clicks produced the identical result. No missing viewport tag, no coordinate mismatch, no dead zones on either platform — this is what a shelf entry is supposed to look like when the underlying LittleJS template is used correctly.

Presentation

Glowing neon-yellow text on a dark navy board reads clearly, and a floating preview piece above the grid shows exactly which column you're about to drop into before you commit, which is a small but genuinely useful piece of UI feedback that a lot of Connect Four clones skip. Sound is minimal — a drop click and basic win/lose cues — which is a fair trade-off at this scope.

Final Verdict

There's nothing revolutionary here, but there doesn't need to be: Drop Four takes a genre classic, gives it a real AI opponent and a couple of useful modes, and gets the touch and mouse controls correct without any fixes needed on this reviewer's end. Recommended for anyone who wants a straightforward, well-made Connect Four.