If you want to beat the game on Hard:
0. Just reroll until you get the very left mine somewhere around the center and a treasure from your first building.
1. Build a mine first, then a tower at the same vertical line as your very left mine (next to it).
2. Save cash for a second mine.
2. Continue building the solid vertical line. Place empty towers only if your rear archers're severely damaged, otherwise save for a tower+archer.
3. Lure the first elephant under crossfire with an empty wall.
4. If you make it to a complete line — you've just won. From this point you can do whatever you want and have fun for remaining 100+ waves.
It could be the best mp game here, however it requires lot of improvements:
• Add player rankings, chat and lobby
• Remove taunt minigame. Seriously, it's extremely boring to type same phrases 20 times in a row, 99% of players get the same results, and taunt takes more time than everything else.
• Add battlefield and army settings — it would be great to use different battlefields with obstacles and bigger armies.
To beat levels on normal with ease: just put your points into interest (and attack speed later), build & upgrade a sniper first, 2 tesla towers next, add a machine-gunner to finish pilots if you need, repeat and add range boosters, missiles, etc.
I haven't figured out how to beat even lvl1 on hard without beating it on easier levels before though.
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