Cubes: Difference between revisions

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-The '''Edgeless Safety Cube''' was introduced in ''Portal 2'', and is used only in the [[Cooperative Testing Initiative|co-op]] campaign. However, it also appears once in the single-player campaign as garbage. The entire name is given out of irony, however it still retains the coloring scheme and patterns present in the designs of the other cubes.
+The '''Edgeless Safety Cube''' was officially introduced in ''Portal 2'', where it is used only in the [[Cooperative Testing Initiative|co-op]] campaign. However, it also appears once in the single-player campaign as garbage. The entire name is given out of irony, however it still retains the coloring scheme and patterns present in the designs of the other cubes.
+The Edgeless Safety Cube did have an appearance in a ''Portal'' Challenge Map, however it was unnamed and also did not have an accompanying receptacle, thus is not widely considered to have its first appearence until ''Portal 2''.
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