How to play Dr. Enlarge-o

Game Description:

Step into the wild laboratory where mad scientist Dr. Enlarge-O plies his trade: developing formulas that make monsters even bigger and scarier. Shooting lasers and 25 active paylines make the action electrifying in this five-reel video slot game with a RTP of 95%. The screen backdrop is a maze of pipes, and the characters filling the reels are bright and spooky. Players will find card suit-shaped sponges floating in a mysterious liquid, Bunsen burners, bottled vapors, twisted forceps and many other symbols. At Dr. Enlarge-O’s side is his assistant, a clipboard-wielding woman with a lab coat and hair in a tidy bun. Game play is on 25 fixed lines, but just because the lines are fixed doesn’t mean the action is slow. Just land on one of Dr. Enlarge-O’s monsters to see what develops!

Game Start:

Game play begins with a player choosing the number of credits per line he or she would like to play. This can be adjusted at the bottom of the screen using the plus and minus boxes at either side of the bet/line box. The amount per line will be multiplied automatically and shown in the total bet box. Clicking on the start button will set the reels spinning. If a winning combination is achieved, the symbols included in the win will be highlighted in bright green. There are 10 monster symbols that may appear on reels two, three or four, and they can substitute for any other symbol except bonus or other monsters. If Dr. Enlarge-O shoots a laser at a monster and hits it, the creature will expand and transform, covering other symbols on the reels and turning them all into wilds.


Players get credits when winning combinations of symbols appear on any of the 25 paylines. Payouts are left to right. There are no scatter wins in the Dr. Enlarge-O game. Three bonus trigger symbols on the first, third and fifth reels will activate 10 free spins, and that’s when the expanding monster feature truly gets wild. Sometimes they grow so big that they overlap each other, though that doesn’t lead to multiplicative wins. If a player’s spin results in a winning combo, the credits earned are shown at the bottom of the screen. The player has the option to bank those credits or select the gamble feature. This feature opens a side game in which the player must choose the color of the playing card that will automatically be selected. A correct guess will yield further winnings while an incorrect choice will result in the loss of the initial stake.

Dr. Enlarge-o Feature:

The Dr. Enlarge-O video slot machine includes an autoplay function in which the player can make the same bet repeatedly without clicking the start button each time. During autoplay, the gamble feature is not available. To turn on autoplay, players can click the green autoplay button. Clicking it again will turn off the feature. The paytable button will show a detailed list of payouts depending on the current number of credits bet per line. Players also can select a full-screen mode for more expansive visuals.