| Pokedex Entries: |
| Red | It spits out Poisonpowder to immobilize the enemy and then finishes it with a spray of Acid. |
| Blue |
| Yellow | When hungry, it swallows anything that moves. Its hapless prey is melted inside by strong acids. |
| Gold | Even though it is filled with ACID, it does not melt because it also oozes a neutralizing fluid. |
| Silver | If its prey is bigger than its mouth, it slices up the victim with sharp leaves, then eats every morsel. |
| Crystal | When it's hungry, it swings its razor-sharp leaves, slicing up any unlucky object nearby for food. |
| Ruby | WEEPINBELL has a large hook on its rear end. At night, the POKéMON hooks on to a tree branch and goes to sleep. If it moves around in its sleep, it may wake up to find itself on the ground. |
| Sapphire |
| Emerald | At night, a WEEPINBELL hangs on to a tree branch with its hooked rear and sleeps. If it moves around in its sleep, it may wake up to find itself on the ground. |
| FireRed | The leafy parts act as cutters for slashing foes. It spits a fluid that dissolves everything. |
| LeafGreen | It spits out Poisonpowder to immobilize the enemy and then finishes it with a spray of Acid. |
| Diamond | A Pokemon that appears to be a plant. It captures unwary prey by dousing them with a toxic powder. |
| Pearl |
| Stadium 1 | Armed with razor-sharp leaves, it uses toxic pollen to immobilize its enemy and melts the helpless foe with ACID. |
| Stadium 2 | Even though it is filled with ACID, it does not melt because it also oozes a neutralizing fluid. |
