Traded over all of the appropriate Pokemon from Platinum, leveled them to appropriate levels, Evolved Murkrow with the Dusk Stone that I traded over, and headed out to take on Roark.
Took down Roark with Shellos and Turtwig. Makuhita tried, but he was just too weak at the time. Craniaods was a problem, since Turtwig decided to become disobedient in the middle of the fight. Turtwig finally came around and took it down when it reached 6HP.
Team
Lv 12: Giga Drain, Tackle, Withdraw, Absorb
Lv 10: Mud-Slap, Mud Sport, Hard, Water Pulse
Lv 8: Fly, Dark Pulse, Shadow Ball, Aerial Ace
Lv 6: Tackle, Focus Energy, Sand-Attack, Surf
Lv 5: Earthquake, Iron Tail, Shock Wave, Water Pulse
Lv 5: Fire Blast, Cross Chop, Flamethrower, Smog
Got to Floroama Town with Geodude as a HM Mule for Rock Smash. Took on Team Galactic … and … almost lost to Mars!!! Surprising I know, but my Pokemon wont listen to me, which is a bit of a problem. Magby saved me in the end thanks to Cross Chop. Arrived at Eterna Forest, and as of this moment, Aron is the only Pokemon listening to me … This is going to get problematic fast : /
Team
Lv 16: Giga Drain, Tackle, Razor Leaf, Absorb
Lv 12: Mud-Slap, Mud Sport, Mud Slap, Water Pulse
Lv 13: Fly, Dark Pulse, Shadow Ball, Aerial Ace
Lv 11: Tackle, Vital Throw, Arm Thrust, Surf
Lv 10: Earthquake, Iron Tail, Shock Wave, Water Pulse
Lv 12: Fire Blast, Cross Chop, Flamethrower, Smog
Edit: Im doing this on Diamond, not Platinum ...