To get an achievement called Thrifty, you have to Three Steak Level 2-6 using only cards that cost 3 coconuts or less. To Three Steak a level is to finish it with all three steaks intact at the end of the pathway.

This guide will show you how to do that.

• Before we start the level, we have to chose from the cards that cost only 3 coconuts. There could be more solutions to this problem, but here's mine: We use Stump Gunners for defense towers and one upgrade, Fireball, for the grand finale.

• Start by collecting all available coconuts and building the first tower in the spot shown in the following picture.

• Always move ahead of the column, collect coconuts and build new towers in the following order, as shown in the pictures:

• You should have all the towers set up before the second explosion / second T-rex appearance. Position yourself as shown and wait for it. If you manage to do that, there's no worrying about the first T-Rex, he's going down on his own.

• Second explosion will bring another T-Rex and some rocket flyers into the game. When the T-Rex is at the point marked with a green X in the picture, use the last card - Fireball. It will help you dispense all the fliers and do enough damage to the T-Rex before he reaches the grub.

• Attention! You will have to reposition yourself to the spot marked as Y in the following picture, in order to destroy the T-Rex. Do it when the dinosaur comes to the top right corner of the pathway. Don't worry, your upgrade (Fireball) will continue to work from the new spot.

• That's it, you've got yourself another achievement for this fun tower defense game. Good luck with the rest of it!