You can buy TM68 Giga Impact for 90,000 Pokédollars at Shopping Mall Nine. The mall is located on Route 9 just to the west of Opelucid City.
The TM can be bought at the Technical Machine Department, which is located on the middle floor of the Mall.
Giga Impact is a Normal-type attack with 150 base Power and the potential to deal significant damage. The user must recharge after attacking with Giga Impact, which is one big downside.
TM68 Giga Impact Location (Step-by-Step)
Step 1: Head west from the Opelucid City Pokémon Center.
Step 2: Continue west through the city, passing the Trainer Tip sign surrounded by flowers.
Step 3: Continue walking until you reach the green tunnel on the western side of the city. Enter the tunnel and exit onto Route 9.
Step 4: Now on Route 9, keep walking west past the vending machines.
Step 5: Directly beyond the vending machines is Shopping Mall Nine. Head inside.
Step 6: Shopping Mall Nine has three floors that are all connected by stairs.
After entering the Mall, head up the small staircase located on the right.
Step 7: Speak to the clerk at the top of the stairs to purchase TM68 Giga Impact.
Along with TM68 Giga Impact, this same clerk also sells the following TM:
|TM15 Hyper Beam||90,000|
Giga Impact Details + Uses
|TM68 Giga Impact Move Details|
This move is a variation of the more widely-known Hyper Beam.
Giga Impact is similar in nearly every way. And just like Hyper Beam, the attack requires that the user recharge during their next turn.
Even though Giga Impact boasts deadly damage at 150 base Power, it simply isn’t worth giving a turn advantage to your opponent. So it’s really not worth using Giga Impact in a typical playthrough.
But if you really want to give it a try?
Giga Impact is a Physical Normal-type move, so it’s best used by Pokémon with a strong Attack stat. Only one Pokémon really justifies using Giga Impact – the Normal-type Slaking.
Its 160 base Attack stat and STAB bonus for the move are very enticing.
Yet even with these considerations, Giga Impact should be reserved for taking out the last Pokémon in your opponent’s party – basically trying to aim for a match-winning OHKO.