Sacnoth, a development partner for the console, produced the Dive Alert games in parallel with Koudelka for the PlayStation.

[2] Battles take place in the ocean, divided into four depth layers and portrayed using a circular radar screen, the player at the centre and enemies or other elements appearing around them.

The protagonist, either Matt or Becky, goes on a mission to prove themselves worthy of entry into Terra by defeating the Automan, hostile beings which populate the ocean.

Guided by a Navicom connected to CDH, the protagonist fulfils several missions and runs into a group called the Resistance, led by Sally and the rogue captain Arahim.

Eventually, CDH is revealed to be the product of an attempt to rectify the flooding, but the human population ended up fighting against itself.

Arahim, revealed to be one of CDH's creators, sacrifices himself to destroy it, allowing humanity including the protagonists to rebuild on Terra.

[19] In a preview article on the console's current and upcoming games, Gamers' Republic cited Dive Alert as an "interesting" title due to its use of wireless multiplayer.

[5] The game was covered in the first issue of Mr Dreamcast, where its uniqueness was noted but it was generally faulted for boring gameplay and dialogue.

He found it inferior to Sacnoth's later NGPC title Faselei!, faulting the slow pace of gameplay and uninteresting battle UI.

[3][22] The magazine Pocket Gamer, as part of a feature on the console for its first issue, was very negative about the title, saying its premise was wasted on uninteresting gameplay and poor dialogue despite good-looking cutscenes.

[23] Kurt Kalata, writing for Hardcore Gaming 101, noted the lack of Dive Alert from the first Neo Geo Pocket Color Collection.