| Achievement | How to unlock
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| - Achieved for completing all 16-bit machines.
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| - Achieved for completing all 8-bit machines.
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| - Achieved for collecting all A2600 special gems.
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| - Achieved for collecting all AppleII special gems.
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| - total play time over 2 hours.
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| - Achieved for collecting all BBC special gems.
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- Commodore 64 Appreciation
| - Achieved for collecting all Commodore 64 special gems.
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| - Achieved for collecting all CPC464 special gems.
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| - Retry 20 times in a row on the same level.
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| - Achieved for collecting all GameBoy special gems.
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| - Achieved for collecting all NES special gems.
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| - Achieved for completing all levels.
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| - You have just met professor pixel for the 1st time.
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| - Achieved for collecting all zx81 special gems.
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| - Achieved for collecting all ZxSpectrum special gems.
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