Here is a very short time-lapse video of a play tester’s Walk-Off Home Run when playing the RallyBird Baseball board game… the player token rounds the bases… teammates rush out of the dugout and leap around him at home plate. (I recommend you set play speed to 0.5 if you can.. click the control to the lower right beneath the image.)
The video also shows a typical Defensive array of Glove tiles on the board. The red-numbered Glove tiles reflect previous Offensive success moving a runner against them. In this situation, after the successful Home Run, Defense will have to remove the red tile in the upper left (left field of the board). This was a walk-off home run.
But if it hadn’t been the end of the game, it would make Defense’s work more difficult as she has only 5 Glove tiles left that half-inning. She wouldn’t have had enough Glove tiles to cover all the 6 zones on the board. That means she’d have to leave one Zone empty, using the lower value printed on the board. Offense would have to guess which one as Offense selects his tactics first and place the At Bat card face-down, then Defense sets up the Zones.

This was sad for Red, defending above. Fortunately, she enjoyed delicious revenge in a following game. After trailing in score in the 7th and 8th inning, she successfully used the (optional) RallyBird power in the 9th. The RallyBird gives the underdog in the 9th inning the choice to re-roll when on Offense, but the RallyBird flies away as soon as you miss one of those re-rolls. Red put runners on the bases then pushed them forward with small ball infield hits again and again (thanks RallyBird). She came back 4 runs in the 9th inning to win. Now Red was cackling and proclaiming RallyBird love, and Blue was cursing that bird. So there!