Got Hard badge on first level using mostly Tack Thrower on good positions and evolving them. With that and going for Super Monkey until level 37 is reached will make you win the game. But ull need to get the super monkey to plasma after level 37 and use some spikes and pineapples in good situations. Then on last 10 levels it is good to go for super monkey storm so you can wipe of Bloons in level 50 to make your Super monkey target only the bosses. Then use some pinapples on the bosses too and you got it.
To get Sparta while drinking coffe simply build 15 repairmen, 1 fully upgraded firebat in the middle spot, 2 times wall upgrade and 2 shields (1 full upgraded and 1 with how much money you have left)
to get the last band aid simply try to move right after you reach this arrow like chunk on the left wall. Then when moving left again after getting the aid you need to wall jump directly in order to not die
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