Player 1 (Red): Use the WASD keys to navigate to the blue swirls from the left side of the screen. If you get to them in less than ten seconds, you get a point, otherwise, the blue swirl moves on to a new location and your opponent gets a point. Player 2 (Blue): Navigate from the right side of the screen with the arrow keys. Use the 1, 2, and 3 keys to place a horizontal, vertical, or diagonal diagonal block in order to prevent your opponent from reaching the goal. For your convenience, a "shadow" of both the goal and the opposing player are provided on your side of the screen.
Thanks to @pengyzeen98 for play-testing and helping me fine-tune. Possibility for making this game into more of a competition with rounds or a "first one to ten wins" kind of thing.