As Heroes grow in strength, their own, unique abilities will grow, and so too will their basic traits listed above. Heroes level up using Khookies (or XP points). Beginning at Level 1, Heroes have 0 Khookies, and as they go about their daily life, they will earn Khookies. Khookies are earned by writing posts. For every 1000 characters in a hero post, a hero will earn 1 Khookie. If the post in question is a collab in which the hero plays a minor role, they will only earn Khookies by taking into account the parts of the post to which they were relevant. If the hero in question plays a big part in the collab, then all the characters are taken into account when tallying the Khookies earned.

The higher a Hero's level, the more Khookies needed to level up. As there will undoubtedly be time-skips, it is important to know that Heroes naturally grow in power over time - which manifests in the form of 'Timeskip Khookie Bonus'. Thus, after a time-skip, a hero will be granted extra khookies. The amount given will most likely be generic and apply to all, though GMs and Co-GMs may use their discretion if they believe plot demands that a certain hero be given more khookies. Such must be consented to by at least two GMs, and other players will generally be consulted on the matter to ensure that the measure is consented to by a majority and that it is fair.