About Minecraft 1.5
The listing for Minecraft 1.5 credits LAX1DUDE, classifies it as Adventure, and identifies HTML5, JavaScript as the technology; the release field is Unknown.
Controls and Getting Started
The catalog does not provide confirmed inputs for Minecraft 1.5. For this HTML5, JavaScript version credited to LAX1DUDE, on-screen prompts are safer than guessing a keyboard layout.
Gameplay Notes
Because browser builds can differ, judge Minecraft 1.5 by the version in front of you; learn its immediate feedback first, then turn those observations into a repeatable approach.