Topplepets is a same-device stacking battle for 2 to 4 players. Take turns placing animal cards on a growing tower. Every animal has a different shape, weight, and center of balance, so even a cute move can become a risky one. If the tower collapses within the 3-second judgment window, the current player loses on the spot. Key features: - pass-and-play local multiplayer on one device - short matches built for friends and family gatherings - six animal types with different balance behavior - drag placement with simple angle adjustment - clear win and loss rules based on physics - Japanese and English support from day one - no login, no ads, no analytics, and no account setup Topplepets is designed to feel warm and approachable while still creating tense, laugh-out-loud moments around the same screen.