YMMV / Pokémon Wack

• Demonic Spiders:
  • Super Nerd Edgar in the Tech Cave only has one Pokémon: a level 43 Porygon-Z. If you're not quick enough to take it down in one hit, your team won't enjoy getting almost One-Hit KO by Ice Beams from a Choice Specs user (Choice Specs greatly increases Sp.Atk but locks the holder in the same move)!
  • At the west of Cherno City, you can double battle a pair of Cooltrainers with level 60 Plusle and Minun. When they both Mega-Evolve, get ready to be swept. Each time a mouse uses Discharge, the other absorbs the attack and gets +1 in Special Attack. Mega-Plusle is Electric/Fire and Mega-Minun is Electric/Ice (Blizzard user!). Either you pray Blizzard to miss, either you'll get zapped in a matter of turns.
• That One Boss: Numerous opponents will give you trouble during the adventure mainly because of their unexpected movepools:
  • Gym Leader Crost is specialized in Ice-types. Even if it's not the strongest member, his Snover is the most dangerous as it can Wood Hammer you into oblivion even if it's only level 11!
  • First battle against Eva in the Ankh Ruins. Your team's exhausted after tens of fights against Team Wack Grunts.
  • Gym Leader Claire's Mega-Rubberfly is double weak to Fire. It could've been a good idea to send a Fire-type against it... until it outspeeds you and One-Hit KO you with Water Spout!
  • First battle against Shlomo inside the Juvite HQ in Synth City. His ace, Myosmic, is equipped with the Life Orb!
  • Gym Leader Duette has a strong and balanced team of Glass and Plastic-type Pokémon. Her Synthite hits strong, her Shattarate hits strong, her Bottle'O'Drake can Draco Meteor its way to victory and her Grasstacles hits fast! ^note Personal example: Grasstacles is faster than Galvantula (108 base speed)!
• That One Level: A few zones are harder than the others:
  • The Ice Cavern after Surfin City is long, and is filled with grunts. Some of them even have access to Mega-Evolution!
  • The Tech Cave is filled with level 43+ trainers and wild Pokémon. Lucky for you, there is a resting room midway.
  • Merlin's gym prevents you from leaving if you don't get the badge. Tens of invisible trainers await you and don't forget there are wild encounters too.