Here is the full list of all 374 Sleengster 2 achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Shoot 388 bullets
Shoot 389 bullets
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Shoot 349 bullets
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Shoot 334 bullets
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Shoot 329 bullets
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Shoot 274 bullets
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Shoot 255 bullets
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Shoot 255 bullet
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Shoot 197 bullets
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Shoot 176 bullets
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Shoot 166 bullet
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Shoot 145 bullets
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Shoot 137 bullets
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Shoot 118 bullets
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Shoot 48 bullets
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Shoot 44 bullets
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Shoot 1 bullet
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