This is a scrolling shoot 'em up, very much in the style of Compile's games like Zanac. I thought it was made by Compile at first, but it's by a developer called Sting.
webrender.rb:2332:output_full_game(DB, @3631, options: {})ocdgamer.rb:902:output_entries_filtered( @3631, headline:Passwords / Cheat Codes, [filter], show_dates:false) ocdgamer.rb:902:output_entries_filtered( @3631, headline:Facts, [filter], show_dates:false) ocdgamer.rb:902:output_entries_filtered( @3631, headline:Analysis, [filter], show_dates:false) ocdgamer.rb:902:output_entries_filtered( @3631, headline:Quotes, [filter], show_dates:false) ocdgamer.rb:902:output_entries_filtered( @3631, headline:Technical Notes, [filter], show_dates:false) ocdgamer.rb:902:output_entries_filtered( @3631, headline:, [filter], show_dates:true) ocdgamer.rb:902:output_entries_filtered( @3631, headline:Log entries, [filter], show_dates:true)