Spiral Knights [SEP] publisher
Spiral Knights
Spiral Knights is a massively multiplayer online game created by Three Rings Design and published by Sega. The free-to-play, Java-based game was released in 2011 and is still updated occasionally.
In the game, the player controls a knight of the Spiral order, which has crash-landed on the mysterious planet Cradle. Knights cooperatively battle monsters throughout the Clockworks, the dungeon that fills the planet's interior. They also battle each other in an optional player-versus-player mode.
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These particles were not detected with an instrument designed to see ENAs, but there was sufficient ancillary data to make the observation quite unambiguous. 
Accelerating ENAs without ionizing them would be difficult, so the reasonable interpretation here is that SEP protons from the flare/CME were able to find singly-charged He and He-like atoms in the solar wind, and thence to convert and continue without magnetic effects.
The particles thus arrived prior to the SEP protons themselves, constrained to follow the Parker spiral