another suggestion is please not to create such annoying enemy like the flying thing where your weapon couldnt reach it and keep getting stunned everything it comes, seriously that is irritating. otherwise its awesome, 5/5
This game has some flaws, first the screen moves way too fast then the man's maneuver is overpowered bye the so called "zomgies" and the cross-hair is not thick enough so it's easy to lose track of it costing your life. 3/5
What you might need to complete all with gold : 1) a commando, useful as a sniper (with sufficient training) or a "rambo" for close intense combat. 2) a spy, most important as your hostage rescuer or can be used as a demolition expert where aerial destruction would cause too much damage to your unit. 3) artillery tank, useful for taking out choppers or buildings in a long range. 4) chopper with rocket that is SHOT not DROPPED, taking out choppers and AA guns while collecting stars, fast and destructive. 5) Just for FUN, especially in bunker levels, it makes you feel powerful above the enemies. hope it helps.
Autofire for farming (best use with laser) : put the ship in your desired position, hold space bar and click outside the game. It should fire automatically.
Need to change the fact that ship stops moving when the mouse pointer moves out of the gameplay screen. Kinda annoying when your dodging at the very end of the screen, otherwise good game. 4/5
How to beat bosses the 'not so hard way' : have enough space for enough bugs, charge, when one dies, choose anyone and reproduce. Good game but seriously need to change to point and click. 4/5
Extra tips: 1) 3-way on the edges always face inwards. 2) straight ones on the edge always outline the edge. 3) a round one (with 1 connection) always connect with a 4-way adjacent to it if there's any. 4) a 3-way's 'no arm' part always faces a straight one in parallel.
To get easy money, upgrade meteor blast to the max, and several units including hero to max. Play the goblin madness lv (12th if im not wrong). Play at the highest difficulty and keep your troops at your castle, charge your mana and meteor blast every black goblin that spawns until.... well....you have enough. It doesnt matter win or lose because surrendering will still give you the loot money although winning would be better.
Use the green hero, play until you reach lv 30. Take succubus, cent. archer, witch, mermaid and the cannon with 1 titan of your choice, use the one with higher upgrade and lower position on the cards. Take the meteor, phoenix, healing, athena, hercules and arrow rain. At the beginning, maxed the number of units except probably the archer. Use meteor spells whenever available to draw the stacked enemy at their base but PARTIALLY. When their titan comes out, charge and deploy phoenix, when your hero reaches the titan, use athena and hercules. While your army attacks their base, keep an eye on the enemy unit number once it spikes, retreat and deploy phoenix IMMEDIATELY especially. Repeat the same strategy and NEVER try to take out the base in a single shot because you will definitely fail and always keep your titan at the base except for the final assault, usually after their base is below 1/4 health. Also heal your army wisely as the charge time is quite long. + if useful.
 "Insectonator: Zombie mode"){kind=icon}
 "Castaway 2"){kind=icon}
 "Lucky Tower"){kind=icon}
 "SteamBirds"){kind=icon}
 "Zomgies 2"){kind=icon}
 "Papa's Taco Mia!"){kind=icon}
 "Pandemic 2"){kind=icon}
 "Learn to Fly"){kind=icon}
 "City Siege 2"){kind=icon}
 "Reactance"){kind=icon}
 "Adapt or Die"){kind=icon}
 "loops of zen"){kind=icon}
 "Epic War 4"){kind=icon}
 "Icy Gifts"){kind=icon}
 "DuckLife3: Evolution"){kind=icon}
 "Epic War 3"){kind=icon}