No, it's not M2. It's part of the G-Mode Archives, which I have never heard of until this moment. Their archives series does contain a title called Love Love Knuckle which looks like this:

...so it's clear this is a list curated by highly cultured individuals.
Anyway. Zanac. https://gmodecorp.com/gmodearchives/zanac/
Translation is mine:
1986年、ゲーム業界にその名を轟かせた名作シューティングゲーム「ZANAC」。
携帯アプリ版となる今作は、隠し要素も含め原作を再現しつつも、 遊びやすさを重視、アレンジを加えたゲームシステムを採用。
更に本作では、G-MODEアーカイブスでの改良により、 より激しく、より滑らかに宙を舞う「Arrange」モード、 当時の懐かしいグラフィックでじっくり楽しめる「Original」モードの2種類を収録。
特殊兵器は8種類。それぞれ特性を生かした攻撃が楽しめ、連続取得で威力が増していきます。
敵からの攻撃弾数が多いためスリル満点。特殊攻撃をうまくつかって最終ボスを倒そう!
In 1986, the STG masterpiece ZANAC made a name for itself in the gaming industry.
This release will be based on the mobile version, and uses game systems which emphasize playability and adds new improvements while reproducing the original, including hidden elements.
Furthermore, thanks to the improvements of the G-MODE archives, there are two types of mode: "Arrange" mode, in which your fighter dances more smoothly yet violently through the air, and "Original" mode, which lets you enjoy with the nostalgic graphics of the time.
There are 8 types of special weapons. Have fun making the best use of each one's characteristics, and their power will increase with continuous pickups. It's a thrilling score chaser because of the huge amount of enemies assaulting you. Make good use of special attacks to defeat the final boss!
タイトル : ZANAC
価格 : 500円(税込)
ジャンル : シューティング
ゲームプレイ人数 : 1人
対応機種 : Nintendo SwitchTM
レーティング : IARC 3+
配信予定日 : 2021年1月28日(木)
オンラインランキング対応
Title: ZANAC
Price: 500 yen (Tax included)
Genre: Shooting
Number of players: 1
Compatible with: Nintendo Switch™
Rating: IARC 3+ (IARC = International Age Rating Coalition)
Release Date: Jan 28th 20201 (Thurs)
Supports online ranking


