Wave 2 figures recently appearing on Amazon are as follows:

Giant Hothead (new)
Giant Thumpback (new)
Flameslinger (Series 2)
Sonic Boom (Series 2)
Stump Smash (Series 2)
Hex (Series 2)
Drill Sergeant (Series 2)
Bash (Series 2)
Double Trouble (Series 2)
Flashwing (new) – incorrectly labelled on Amazon as Series 2.
Sprocket (new) – incorrectly labelled on Amazon as Series 2.
Gill Grunt (Series 2)
Jet-vac (new)
Glow in Dark Fright Rider (new)

Wave 1 figures are as follows:

Pop Fizz (new) – incorrectly labelled on Amazon as Series 2.
Chill (new) – incorrectly labelled on Amazon as Series 2.
Fright Rider (new) – incorrectly labelled on Amazon as Series 2.
Zook (Series 2)
Whirlwind (Series 2)
Terrafin (Series 2)
Slam Bam (Series 2)
Ignitor (Series 2)
Trigger Happy (Series 2)
Prism Break Lightcore (new)
Drobot Lightcore (new)
Eruptor Lightcore (new)
Giant Crusher (new)
Giant Granite Crusher (new)
Giant Bouncer (new)
Giant Legendary Bouncer (new)
Giant Swarm (new)
Chop Chop (Series 2)
Dragonfire Cannon (new)
Shroomboom (new)
Legendary Triple Pack (new)