If there is a criticism to be levied, it is that the ambiguity can sometimes feel like obstruction. There are moments where the "mission" mechanics or the plot twists threaten to overshadow the character work. Some viewers may find the final act too abstract, demanding answers that the story is unwilling to provide. It requires patience and a willingness to sit with unanswered questions.

The developer, (ちぃってなくメル友), primarily engages with the community via social platforms like X (formerly Twitter). While an indie project, it has built a following on TikTok and YouTube for its niche blend of sci-fi action and stylized animations.

At its core, Miriru Mission (placeholder title) is less about the destination and more about the fragility of the journey. It is a puzzle box of emotion, a narrative that weaves the past and present into a tapestry that is as bewildering as it is beautiful.

As of 2025, the Miriru Mission has expanded beyond Japan. Partnership deals have been signed with preschools in Singapore, Finland, and Canada. The developers are currently working on "Miriru Mission: Outdoors"—an audio-only app that guides families through park missions without looking at a screen at all.