Monsters vs Aliens

There's not a great deal I can offer you in terms of how to get this achievement, it's all in the description, complete the first chapter of the game, however you may find these videos of the first chapters levels handy, it'll help you get your bearings on any part you might be stuck on and give you an idea of what to expect!

There are 8 levels in the first chapter, here's a list of them and who you play as on each of them;
• Jail Break - Ginormica
• Helping Hand - The Missing Link
• Hypnosis - B.O.B.
• Pursuit - Ginormica
• Taking The Elevator - The Missing Link
• Infiltration - B.O.B.
• Almost There - Ginormica
• Mind Blowing - The Missing Link

It may appear that I have missed out some of the videos but I haven't, the missing video only contains footage of a monster challenge and isn't relevant to this achievement.

* ^{Credit to WowImPregnant for the videos}