Teeter Totter Tower

Players add pieces to the seesaw, changing the balance to try to get either the "3" or "1" lines at the bottom of the seesaw to line up. If they do, the player gains that many points. The first player to get 6 points wins.
—user summary

TEETER TOTTER TOWER is an exciting game of balance. Take turns placing paper pieces on the seesaw to make it tilt atop the tower.
If the seesaw falls off the tower, you’re out!
Paper pieces of different size and thickness are placed strategically on the seesaw to make it balance evenly, or tip it to the limit.
A fun and exciting challenge for players of all ages.
You’ll surely get hooked on the feeling of relief when the seesaw stops just short of falling.
—description from the publisher