Splush

Splush is a group-gathering game for Shibumi that uses entries and slide drops. The board starts as shown below:

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Players then take turns either:

Entering a ball of their color from the side onto a 2x2 platform, which may push other balls, or

Removing a ball of their color and entering it back into play as per move 1; this removal may cause a drop.

Entering a ball may cause a drop but may not push any balls off the board. You cannot enter a ball onto any ball that has just
dropped as part of the move. A player wins by connecting all of their visible balls (when viewed from above) into a single connected group.