• ✓Not one new painting: the four frog poses, the sixteen insects and both pond plates already existed
• ✓The halfway line is the rule, not decoration: a screen knows where a finger landed, never whose it is — so an insect belongs to the bank it is over
• ✓Every insect bobs a whole number of cycles, so the time it spends over each frog is exactly equal — not equal on average
• ✓verify:frog-duel follows 12,000 insects frame by frame and fails if any one of them favours a bank
• ✓No clock: the round ends when the pond empties, which a child can see coming
• ✓Tongue speed is agreed out loud before the round, the same way the bat size is in the rally
• ✓Still the single-player pond plate: the far frog sits against sky rather than on a bank, and a plate composed with a bank at BOTH ends is the painting this game actually wantsplanned

✓ = done · ☐ = planned. Every game is built one step at a time like this.