Generation I
Bind does damage for 2-5 turns. There is a 37.5% chance that it will attack for 2 turns, a 37.5% chance that it will attack for 3 turns, a 12.5% chance that it will attack for 4 turns, and a 12.5% chance that it will attack for 5 turns. Though technically only the first attack can critical hit, every attack during the duration will do the same amount of damage. During this turn duration, the opponent will be unable to attack, and if the user of Bind attacks before the opponent when used, the opponent will be unable to attack during that round as well.
Damage done by Bind's continuing duration is done after recurrent damage. If the user switches out before the turn duration ends, the opponent will be unable to attack during that turn, since it did not get to select a move. If the opponent switches out before the turn duration ends, Bind will automatically be used against the incoming Pokémon, deducting an additional PP from the move. If at such a time Bind has 0 PP, Bind will still be used against the incoming Pokémon. After that use, the current PP of Bind will roll over to 63, and full PP ups will be applied to it.
Even if Bind misses, it will negate the recharge turn normally required for Hyper Beam. Additionally, if the user of Bind attacks before the user of Hyper Beam during a recharge turn and the use of Bind misses, the user of Hyper Beam will automatically use Hyper Beam during that turn. If at such a time Hyper Beam has 0 PP, Hyper Beam will still be used, and afterwards its current PP will roll over to 63, and full PP ups will be applied to it.
Although Bind can't damage Ghost types, it can immobilize them.
The opponent will get to select a move during each turn of Bind's duration, and will attack the player's incoming Pokémon with the selected move if the player decides to switch before the duration is over.
In Pokémon Stadium, the player gets to select a move during each turn of Bind's duration. If the opponent switches out before the duration ends, the incoming Pokémon will not automatically be attacked. Bind will negate the recharge turn of Hyper Beam only if successful.
