Alien evolution up up up

Alien Evolution UPUP" is a slot machine based on eliminating drops with no payout line, and you can win a prize by having 4 identical symbols next to each other! The bonus is automatically replenished by eliminating the same symbols in a row, and you can win the prize in a row! There is also a unique leveling mechanism that allows you to accumulate leveling symbols and unlock rewards with higher multipliers! Accumulate 15 symbols in the first and second levels to enter the next level and double the bonus! The third level is even more exciting. Accumulating 15 reset symbols will return you to the first level to challenge for higher rewards! In the free game, the multiplier symbols are doubled in power, and the total multiplier will be accumulated to make the bonus go up all the way!