Medium Level 2 - Gordy

Waves: 24
Lives: 10
Cash: $50

This is the level that introduces us to the beauty of the Vortex Tower. So now you can recycle the bad vibes and use the absorbed energy to feed back into other towers you have linked up. Yes, the bad guys do get very tough this time, so you need to slow 'em down! Everything seems hunkydory for several rounds, then, if you haven't done the ground work, you will be well and truly scuppered.

Medium Level 1 - Speed Round

Waves:14
Lives: 10
Cash: $75

It's all about speed... So use the shock towers to slow them down, coupled with lasers to weaken them on the straights and blasters to finish them off. It's then a case of strengthening the towers and adding to them at strategic points. If you are anything like me, you'll lose a few rounds before working out which ones to strengthen and in what order. You should be able to get some useful tips from the screenshots. Good old GeoDefense. Good old iphone.

Easy Level 10 - Quee's Revenge

Waves: 19
Lives:10
Cash: $32

"The Quee Potato was not amused". Quite who or what the Quee Potato is, is not obvious. However, what is obvious is that you need to get some blaster towers laid out quickly in the last of the easy levels. I combined these with one each of the laser and missile towers, then built them up quickly as the creeps swarmed round and round. Hey, I got through all the Easy levels without losing a life. Eventually.

Easy Level 9 - Time will tell...

On this level you need to work fast to place the towers and to strengthen them in the most effective order. Experimentation is the key and after a few losses you'll find your way to the end with all your lives complete...

Easy Level 8 - Soppy Joe

Like many of the levels, you need to work out what route the creeps travel along first of all. Once you have done that, you can work out the key points for towers. Once you have started this level you need to keep adding in towers and building them up. You have to lose a few times before you can work out the optimal order for placing towers. The level may seem difficult, but wait until you get to medium and hard levels!

Easy Level 7 - Ascension

This level is fun. The creeps can travel past towers more than once in different directions, and laser towers seem to be particularly useful - just make sure you build them up quick enough to keep the creeps at bay. And line them up well so they shoot straight along the paths. 40 rounds is quite a lot to get through - still I managed it with no lives lost.

Easy Level 6 - Shoulda Zagged

So I'm playing every level of Geo-Defense, trying to complete each one without losing ANY lives. What I like about this game is that each level requires a different approach. You can't tell in advance what is going to work. On this level, the most effective strategy seemed to be wearing down the creeps with lots of blasters.