Lose more battery? Need more speed? Need to cause more dmg? Now here it is! Follow this instruction and you'll get it!
In order to win this game, you first have to buy the Dagger. Second, earn two wins, sell the Hydrogen Battery, and purchase the Alkaline Battery so you do not waste more battery as you go to the other place. Next, earn thirty-one wins, sell the Small Engine, and purchase the Small Engine Deluxe. This let you move faster and waste less battery. Next, earn eight wins and sell four Small Wheels and purchase six Large Wheels. Next, earn twenty-five wins to purchase then Large Tower. Buying a bigger size for your robot costs more energy. After that, earn another seven wins and sell the Small Chassis to buy the Medium Chassis. Then, earn twenty wins in order to buy Razor Discs. This weapon is easy to make a simple target. After purchasing Razor Discs, win fourteen times, sell the Dagger, then purchase the Spear Gun. Next, win ten times and buy the Rear-End Camera. Earn twenty-two wins, sell the Medium Chassis, and purchase the Large Chassis. After that, win thirty-five wins and purchase the Flame Thrower. This weapon is easier to shoot at medium range, even through the gate. Earn forty-three wins, sell the Flame Thrower, then purchase the Armour Regenerator. Voila! Now, you can now battle against the powerful robots to become the first colossal robot of all robots.
NOTE: In order to stay the same rank, you have to lose five times. If you don't, then it takes longer time to get more wins than losses.
You get it? If you don't, then start all over again! Practice makes perfect.