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Bugs

Mr. Do! is a fairly robust game, but it does nevertheless have its fair share of bugs. Some are annoying; others merely amusing.

• The score goes up to a maximum of 999,950 points. Once you reach a million, the score starts again from zero and the screen average are no longer calculated correctly. Similary, the scene number goes back to zero after scene 99 and total game time goes back to zero after 59'59".


Screen shot after reaching precisely 1,000,000 points on scene 88. The score has reset itself back to 0 points.



Screen shot of scene 100. The scene number has reset itself to scene 0.



The summary screen after scene 90. The total points should read 1,024,350 instead of 24,350 and the average should be 11381 instead of 270.



The summary screen after scene 160. The total time should read 61 minutes 58 seconds instead of 1 minute 58 seconds.

• Sometimes the letters stop coming out after 1,000,000 points. They still come out after you eat the food, but not after each 5,000 points. I have recently discovered a workaround for this. It only happens if your score is just less than 995,000 and you score a large number of points at once to take your score to 1,000,000 or more. For example, if your score is 994,000 and you crush five red monsters simultaneously for 8,000 points, your score goes up to 1,002,000. A letter will come out, but no further letters will appear until you reach 2,000,000 points.
• The difficulty level resets itself after 256 scenes. Thus scene 257 is as easy as scene 1 and a cake appears in the centre instead of the expected cocktail. If you reach this far, this is somewhat disorientating, but works to your advantage as you have the chance to gain a few extra lives easily.


Scenes 257, 258 and 259 showing the same food as scenes 1, 2 and 3 respectively. Note that no diggers have appeared!

• Occasionally, the letter and munchers do not come out when you eat the food, or a letter comes out without munchers, although the red monsters and diggers are immobilised, or the letter comes out partially and seems to get stuck halfway out. I haven't encountered this bug often enough to work out what causes it.

Click here to see an illustration.

• Sometimes a muncher or letter gets stuck in a loop eating an apple. This seems to happen when an apple falls adjacent to a muncher or letter. The apple wobbles but does not fall, with the muncher or letter swooping round it from side to side with open mouth. This is highly amusing, but can be alarming if you're at a crucial stage of a game. You can shoot the muncher or letter to break the loop.

Click here to see an illustration.

• It is possible to trap a red monster between two apples. This can happen when the red monster is adjacent to one apple, with another apple above the first apple, slightly overlapping the monster. The monster vibrates wildly but cannot move. You can turn this bug to your advantage by eating all the cherries before eventually shooting the red monster. If a letter is about to come out, you can wait at your leisure for the desired letter to be highlighted before triggering its release. Do not try to drop the top apple onto the monster, as it will catch the edge of the other apple, breaking both apples and freeing the monster. It is better to shoot the monster. It's also quite amusing to eat away the earth of the entire screen, and throw the ball around all over the place.

Click here to see an illustration.

• Cherries can sometimes get distorted. This seems to happen when you shoot a red monster in the vicinity of a cherry or push an apple over a red monster as it is eating a cherry. You can also get cherries without a stalk, a stalk without cherries, single cherries, and black cherries.

• Sometimes a crescent-shaped hole appears in the earth after shooting a monster, which may partly obscure a cherry.

• When the summary screen first appears, there are often some apples remaining from the previous scene, although they disappear very quickly.

• Rarely, the ball bounces along the very top of the playing area, above the top row. It whizzes back and forth a few times before self-destructing. I haven't seen this enough times to work out how it happens. It's bad news, because you're stuck without a ball for quite a while.
• The ball can get stuck between an apple and a wall. This seems to happen sometimes when you do a turn-and-fire beneath a wobbling apple. The apple seems to fall on the ball, and the ball remains vibrating by the side of the apple. This is quite common if you use the turn-and-fire technique beneath a wobbling apple. It's usually bad news, but the ball seems to self-destruct fairly quickly.
• Occasionally, "phantom dithering" occurs. One or more red monsters start "dithering", as if an apple is about to fall on them, but there's no apple! They recover after a couple of seconds. This is generally quite useful, as it keeps them out of play for a while. I haven't worked out why this happens.
• Sometimes the earth is not removed properly. You've passed through a wall, or dropped an apple through a wall, but some background colour remains. I was once fooled by this. I was apparently protected from the red monsters by a wall, but they came straight through it!
• It is possible for a diamond to appear which cannot be reached. The diamond appears in an intermediate position between two rows and between two columns. You can manoeuvre all around the diamond but you cannot reach it. This has only happened to me once, and needless to say, it was most upsetting!

If you have any bugs, explanations or solutions to add to this list, please let me know!